Direct-Photon Production in Au+Au Collisions at RHIC
نویسنده
چکیده
Results from the PHENIX experiment on direct-photon production in Au+Au collisions at √ sNN = 200 GeV for transverse momenta 1 . pT . 13 GeV/c are presented. Direct-photon yields at high pT scale as expected for particle production in hard processes. This supports jetquenching models which attribute the suppression of high-pT hadrons to the energy loss of fast partons in the quark-gluon plasma. The low-pT direct-photon spectra, measured via e+e− pairs with small invariant masses, are possibly related to the production of thermal direct photons in Au+Au collisions at RHIC.
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Enhanced Direct Photon Production in Au + Au Collisions at √ s NN = 200 GeV in PHENIX
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